San Jose California Climate Data

Monthly Average Climate Data for San Jose California

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January5.3 °C14.9 °C77.72 mm
February6.4 °C16.5 °C81.53 mm
March7.7 °C18.6 °C59.18 mm
April8.7 °C20.6 °C29.97 mm
May10.8 °C23.1 °C12.19 mm
June12.5 °C25.9 °C3.05 mm
July13.9 °C27.3 °C0 mm
August14.1 °C27.3 °C1.02 mm
September13.2 °C26.8 °C1.78 mm
October10.8 °C24 °C16.76 mm
November7.4 °C18.4 °C32.77 mm
December5.1 °C14.8 °C70.1 mm
Annual9.7 °C21.5 °C386.07 mm

Climate Data for San Jose California

Average First Frost DateJan. 1 - Jan. 10
Average Last Frost DateFeb. 1 - Feb. 10
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9b : -3.9°C to -1.1°C
Plant Hardiness Zone - 2012Zone 9b : -3.9°C to -1.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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